Good morning. Here’s a roundup of news from the overnight world desk. Have a good day!

3 arrested in Croatia after Serbian water polo team attack:Croatian police on Sunday detained three suspects over an attack on Serbian water polo team players that forced one to jump into the freezing sea to get away. The incident in the Croatian Adriatic port of Split, which occurred on Saturday before a regional league match between Mornar Split and Red Star Belgrade, further strained relations between Serbia and Croatia. The Serbian team returned to Belgrade without playing the match. Tensions are still high between the two Balkan neighbours after their war in the 1990s. The Croatian interior ministry said the three detained men are “linked” with the attack in a seaside cafe and that police are still looking for two additional suspects. A Red Star jersey was found with one of the arrested suspects. Red Star goalkeeper Alesandro Kralj, who suffered a broken nose in the attack, said he jumped into the sea to avoid being killed.

Chimps use branch to make ladder, escape Belfast Zoo: Zookeepers say a group of chimpanzees used branches weakened by a storm to make a ladder and escape from their enclosure at the Belfast Zoo. Video filmed Saturday by visitors to the Northern Ireland zoo showed several primates scaling a wall and perching atop it, with one walking down a path outside the enclosure. Zookeeper Alyn Cairns said trees in the chimps’ enclosure had been weakened by recent storms, allowing the animals to break them and fashion a ladder to escape. He told the BBC “they’re intelligent primates and know they’re not supposed to be out of their enclosure, so got back in themselves.” Two weeks ago a rare red panda escaped from the same zoo when its electric fences failed. The animal was recaptured in the driveway of a nearby house.

Whiskey the whippet revs up for Westminster: Sleek and aerodynamic, Whiskey the whippet is dashing through the dog show world. He’s from one of the fastest breed of pooches on the planet, and his rise has been rapid: Coming off big wins televised on Thanksgiving Day and New Year’s Day, he’ll now try for dogdom’s Triple Crown starting Monday at the Westminster Kennel Club. “He does his best at these high-profile rings,” owner-breeder-handler Justin Smithey said. “He knows how to turn it off, lay down and wait till it’s his turn. And then he just goes.” So let’s make this fawn-and-white whippet the favourite to get picked Tuesday night and succeed Flynn the bichon frise as America’s top dog. There are more than 2,800 entries, including popular Biggie the pug, a Lhasa apso from Hawaii who surfs with his owner and the nation’s No. 1-ranked qualifier last year, Grant the black cocker spaniel.